Non-aqueous electrolyte secondary battery

The non-aqueous electrolyte secondary battery which comprises a positive electrode core member and a positive electrode plate supported thereon is formed on both surfaces of the positive electrode material mixture layer, a non-aqueous electrolyte, a negative electrode core member and a negative electrode plate supported thereon on both sides of the negative electrode mixture layer is formed, the positive electrode material mixture layer containing a lithium-containing composite oxide, the total thickness of both surfaces of the positive electrode material mixture layer is 100μm or less than 40μm, the electrode area of ​​the positive electrode plate of the battery capacity per 1Ah 520cm